In 2008 and 2009, the Edmonton Public Library (EPL), where the author works as an information professional, completed a $6 million CDN (about $5.7 million) RFID conversion project with the installation of automated check-in and sorting equipment at six of its 17 service points. The sorters currently handle about 55% of EPL's system's total check-in volume. The author and her colleagues realized early on that installing automated materials handling (AMH) equipment at every branch would not be practical or financially feasible. They also realized that effective planning for sorters required more than simplistic measures of space and circulation volume. In this article, the author shares lessons learned in installing automated check-in and sorting equipment and developing EPL's decision-making models. She discusses key considerations when planning for AMH.